Requests a VPC peering connection between two VPCs: a requester VPC
that you own and a peer VPC with which to create the connection. The
peer VPC can belong to another AWS account. The requester VPC and peer
VPC cannot have overlapping CIDR blocks.

The owner of the peer VPC must accept the peering request to activate
the peering connection. The VPC peering connection request expires
after 7 days, after which it cannot be accepted or rejected.

A CreateVpcPeeringConnection request between VPCs with
overlapping CIDR blocks results in the VPC peering connection having a
status of failed .